Okaz 67 Orsi 



OKAZAKI, Miss K. — Fac. of Sci., Dept of Biol., Embryol. Section, Tokyo 



Metropolitan Univ., Meguro-ku, TOKYO, Japan, 

 a. Metamorphosis of partial larvae of Peronella (a sand-dollar). (Echinoi- 



dea) 

 OKSCHE, A. A. — Anat. Inst, der Univ., Robert Koch Str. 6, MARBURG/ 



Lahn, Deutschland. 



a. Anderungen des Kaulquappen-Wachstums nach beiderseitiger Augen- 

 Exstirpation. Es soil hierbei die Rolle des Hypophysen-Zwischen- 

 hirn-Systems und der Epiphyse untersucht werden. Larven von Bufo 

 vulgaris (Amphibia) 



b. Die Feinstruktur der Sinneszellen des Organon frontale bei qualitativ 

 und quantitativ modifiziertem Lichtreiz. Verhalten der spezifischen, mit 

 Eisen-Haematoxylin farbbaren Zellstrukturen wahrend des Individual- 

 zyklus. Larven von Bufo vulgaris (Amphibia) 



OLIVO, O. M. Med. Dr, Prof. — 1st. di Istol. e Fisiol., Via Belmeloro 8, 



BOLOGNA, Italia. 



(no data received over this year) 

 OLSSON, R. — Zootom. Inst., Univ. of Stockholm, 116, Drottninggatan, 



STOCKHOLM, Sweden, 

 a. Development and anatomy of the nuclei and nerve fibres in the brain. 



Polypterus (Brachiopterygii) 

 OMODEO, P. Dr Sc. — 1st. di Biol, e Zool. gen., Fac. di Med., Piazza 



S. Agostino 4, SIENA, Italia. 



a. Embryology and teratology in Oligochaeta. 



b. Gametogenesis in Oligochaeta. (in collaboration with students) 

 OORT, J. — Lab. tor Exper. Histol., Fac. of Med., Univ. of Leyden, Was- 



senaarseweg, Boerhaavekwartier, LEIDEN, Holland, 

 a. Development of the anterior hypophysis of the black-headed gull. Larus 

 ridibundus (Aves) 

 OPPENHEIMER, Miss J. M. Ph.D. — Dept of Biol., Bryn Mawr Coll., 

 BRYN MAWR, Pa, U.S.A. 



a. Studies on early organization of blastoderm. Fundulus heteroclitus 

 (Teleostei) 



b. Studies on development of structure and function of central nervous 

 system. Fundulus heteroclitus (Teleostei) 



OPPENOORTH, F. J. — Zool. Lab. der Rijks Univ., Janskerkhof 3, 

 UTRECHT, Holland, 

 a. Developmental physiology of mutants. Drosophila melanogastev (Insecta) 

 (in collaboration with Miss E. C. BOTERENBROOD, L. E. NIJEN- 

 HUIS and N. SPRONK) 

 ORLANDI, Miss A. Dr — 1st. di Zool. e Anat. comp., Via Celoria 10, 

 MILANO, Italia, 

 a. Nucleoproteins and myosin. (Vertebrata) 

 ORLOWSKI, A. B.Sc. — Dept of Endocr., Fac. of Med., Med. Highschool 

 of Lodz, Nowotki 137, LOD2, Poland, 

 a. The influence of hormones on metamorphosis of Xenopus laevis. (Am- 

 phibia) (in collaboration with A. BER) 

 ORSINI, Mrs M. W. Ph.D., B.A., U.S. Public Health Fellow, Nat. Cancer 

 Inst. — Dept of Anat., Univ. of Wisconsin, MADISON, Wis., U.S.A. 

 a. Development and reproduction in the hamster, with emphasis on the 

 uterine giant cells. Cricetus (Mammalia) 



